Junior Data Engineer: Scrapers, ETL & AI Enrichment

Cato; Barcelona; Presencial; EUR 45.000 - 65.000; Jornada completa

Descripción de la vacante

Cato in Barcelona seeks a Python-focused data engineer to own tender-scraping end-to-end, from source to customer-ready data. You will build and maintain scrapers for national portals, handle HTML/XML content, manage pagination and sessions, and implement AI enrichment steps.

Ideal candidates are proficient in Python and SQL, comfortable with messy sources, and able to automate manual steps. You will work with orchestration tools and ensure reliable, auditable data delivery.

Formación

• 1–2 years writing Python in production for scrapers or ETL.
• Experience with HTTP/HTML/XML parsing and pagination.
• Comfort with messy sources and data quality checks.

Responsabilidades

• Build and maintain scrapers for national tender portals.
• Turn messy sources into clean records and ensure reliability.
• Write orchestrator flows with retries and alerts.
• Work on merge/deduplication and AI enrichment steps.
• Guard data quality with tests and checks before delivery.

Conocimientos

Python (typed, tested)

HTTP parsing

HTML parsing

XML parsing

Pagination strategies

SQL (joins, windows)

Automation mindset

LLM extraction familiarity

Herramientas

Prefect

Airflow

Dagster

OCR on attachments

Descripción del empleo

Cato in Barcelona seeks a Python-focused data engineer to own tender-scraping end-to-end, from source to customer-ready data. You will build and maintain scrapers for national portals, handle HTML/XML content, manage pagination and sessions, and implement AI enrichment steps.

Ideal candidates are proficient in Python and SQL, comfortable with messy sources, and able to automate manual steps. You will work with orchestration tools and ensure reliable, auditable data delivery.